JP2011059329A5

JP2011059329A5 -

Info

Publication number: JP2011059329A5
Application number: JP2009208283A
Authority: JP
Filing date: 2009-09-09
Publication date: 2012-10-25
Anticipated expiration: 2029-09-09

Description

上記目的を達成するために、本発明の画像形成装置は、像担持体上に形成された静電潜像を現像するための現像剤が充填された現像剤格納容器と、前記現像剤格納容器を回転駆動するための駆動手段と、前記現像剤格納容器の表面に磁性材料により形成された磁気パターンと、前記磁気パターンに対向する位置に配置され、前記磁気パターンから磁気を検知する磁気検知手段と、前記駆動手段により駆動されて回転する現像剤格納容器から前記磁気検知手段によって検知された磁気パターンに基づいて、前記現像剤格納容器の識別情報の読み取りを行う制御手段とを備える画像形成装置において、前記磁気パターンは、前記現像剤格納容器の回転方向に対して垂直方向に長さが異なる複数の磁性材料のバーから成り、前記複数のバーを組み合わせて配置された、前記識別情報を示す第一の磁気パターンと、前記識別情報の読み取り開始タイミングを示す第二の磁気パターンとで構成されることを特徴とする。 In order to achieve the above object, an image forming apparatus according to the present invention includes a developer storage container filled with a developer for developing an electrostatic latent image formed on an image carrier, and the developer storage container. A driving means for rotationally driving, a magnetic pattern formed of a magnetic material on the surface of the developer storage container, and a magnetic detection means disposed at a position facing the magnetic pattern and detecting magnetism from the magnetic pattern comprising the, on the basis of the developer storage container which rotates while being Rica moving by the drive means to the magnetic pattern detected by the magnetic detection means, and control means for reading identification information of the developer storage container In the image forming apparatus, the magnetic pattern includes a plurality of bars of magnetic material having different lengths in a direction perpendicular to a rotation direction of the developer container, and the plurality of bars are combined. Was arranged, a first magnetic pattern representing the identification information, characterized in that it is constituted by a second magnetic pattern indicating the read start timing of the identification information.

Claims

A developer storage container filled with a developer for developing the electrostatic latent image formed on the image carrier, drive means for rotationally driving the developer storage container, and a magnetic pattern formed by magnetic material on the surface, the is disposed in a position facing the magnetic pattern, and a magnetic detection means for detecting a magnetic from the magnetic pattern, developer rotated by Rika moving by the drive means In an image forming apparatus comprising: a control unit that reads identification information of the developer storage container based on a magnetic pattern detected by the magnetic detection unit from the storage container;
The magnetic pattern includes a plurality of bars made of a magnetic material having different lengths in a direction perpendicular to the rotation direction of the developer storage container, and the first information indicating the identification information arranged in combination with the plurality of bars. An image forming apparatus, and a second magnetic pattern indicating a read start timing of the identification information.

The image forming apparatus according to claim 1, wherein the magnetic detection unit outputs different logical values according to a plurality of magnetic materials forming the magnetic pattern.

The image forming apparatus according to claim 1, wherein the first magnetic pattern is formed of a plurality of magnetic materials having the same length in a direction perpendicular to a rotation direction of the developer storage container.

4. The control unit according to claim 1, wherein the control unit starts reading the identification information from the first magnetic pattern in response to detection of the second magnetic pattern by the magnetic detection unit. 5. 2. The image forming apparatus according to item 1.